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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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![]() When enable SLUB debug, than remove hns_enet_drv module, SLUB debug will identify a use after free bug: [134.189505] Unable to handle kernel paging request at virtual address 006b6b6b6b6b6b6b [134.197553] Mem abort info: [134.200381] ESR = 0x96000004 [134.203487] Exception class = DABT (current EL), IL = 32 bits [134.209497] SET = 0, FnV = 0 [134.212596] EA = 0, S1PTW = 0 [134.215777] Data abort info: [134.218701] ISV = 0, ISS = 0x00000004 [134.222596] CM = 0, WnR = 0 [134.225606] [006b6b6b6b6b6b6b] address between user and kernel address ranges [134.232851] Internal error: Oops: 96000004 [#1] SMP [134.237798] CPU: 21 PID: 27834 Comm: rmmod Kdump: loaded Tainted: G OE 4.19.5-1.2.34.aarch64 #1 [134.247856] Hardware name: Huawei TaiShan 2280 /BC11SPCD, BIOS 1.58 10/24/2018 [134.255181] pstate: 20000005 (nzCv daif -PAN -UAO) [134.260044] pc : hns_ae_put_handle+0x38/0x60 [134.264372] lr : hns_ae_put_handle+0x24/0x60 [134.268700] sp : ffff00001be93c50 [134.272054] x29: ffff00001be93c50 x28: ffff802faaec8040 [134.277442] x27: 0000000000000000 x26: 0000000000000000 [134.282830] x25: 0000000056000000 x24: 0000000000000015 [134.288284] x23: ffff0000096fe098 x22: ffff000001050070 [134.293671] x21: ffff801fb3c044a0 x20: ffff80afb75ec098 [134.303287] x19: ffff80afb75ec098 x18: 0000000000000000 [134.312945] x17: 0000000000000000 x16: 0000000000000000 [134.322517] x15: 0000000000000002 x14: 0000000000000000 [134.332030] x13: dead000000000100 x12: ffff7e02bea3c988 [134.341487] x11: ffff80affbee9e68 x10: 0000000000000000 [134.351033] x9 : 6fffff8000008101 x8 : 0000000000000000 [134.360569] x7 : dead000000000100 x6 : ffff000009579748 [134.370059] x5 : 0000000000210d00 x4 : 0000000000000000 [134.379550] x3 : 0000000000000001 x2 : 0000000000000000 [134.388813] x1 : 6b6b6b6b6b6b6b6b x0 : 0000000000000000 [134.397993] Process rmmod (pid: 27834, stack limit = 0x00000000d474b7fd) [134.408498] Call trace: [134.414611] hns_ae_put_handle+0x38/0x60 [134.422208] hnae_put_handle+0xd4/0x108 [134.429563] hns_nic_dev_remove+0x60/0xc0 [hns_enet_drv] [134.438342] platform_drv_remove+0x2c/0x70 [134.445958] device_release_driver_internal+0x174/0x208 [134.454810] driver_detach+0x70/0xd8 [134.461913] bus_remove_driver+0x64/0xe8 [134.469396] driver_unregister+0x34/0x60 [134.476822] platform_driver_unregister+0x20/0x30 [134.485130] hns_nic_dev_driver_exit+0x14/0x6e4 [hns_enet_drv] [134.494634] __arm64_sys_delete_module+0x238/0x290 struct hnae_handle is a member of struct hnae_vf_cb, so when vf_cb is freed, than use hnae_handle will cause use after free panic. This patch frees vf_cb after hnae_handle used. Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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3com | ||
8390 | ||
adaptec | ||
aeroflex | ||
agere | ||
alacritech | ||
allwinner | ||
alteon | ||
altera | ||
amazon | ||
amd | ||
apm | ||
apple | ||
aquantia | ||
arc | ||
atheros | ||
aurora | ||
broadcom | ||
brocade | ||
cadence | ||
calxeda | ||
cavium | ||
chelsio | ||
cirrus | ||
cisco | ||
cortina | ||
davicom | ||
dec | ||
dlink | ||
emulex | ||
ezchip | ||
faraday | ||
freescale | ||
fujitsu | ||
hisilicon | ||
hp | ||
huawei | ||
i825xx | ||
ibm | ||
intel | ||
marvell | ||
mediatek | ||
mellanox | ||
micrel | ||
microchip | ||
moxa | ||
mscc | ||
myricom | ||
natsemi | ||
neterion | ||
netronome | ||
ni | ||
nuvoton | ||
nvidia | ||
nxp | ||
oki-semi | ||
packetengines | ||
pasemi | ||
qlogic | ||
qualcomm | ||
rdc | ||
realtek | ||
renesas | ||
rocker | ||
samsung | ||
seeq | ||
sfc | ||
sgi | ||
silan | ||
sis | ||
smsc | ||
socionext | ||
stmicro | ||
sun | ||
synopsys | ||
tehuti | ||
ti | ||
toshiba | ||
tundra | ||
via | ||
wiznet | ||
xilinx | ||
xircom | ||
xscale | ||
dnet.c | ||
dnet.h | ||
ec_bhf.c | ||
ethoc.c | ||
fealnx.c | ||
jme.c | ||
jme.h | ||
Kconfig | ||
korina.c | ||
lantiq_etop.c | ||
lantiq_xrx200.c | ||
Makefile | ||
netx-eth.c |